Bureau Of Meteorology, Meishan, Sichuan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Bureau Of Meteorology, Meishan, Sichuan, China
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 41 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Bureau Of Meteorology, Meishan, Sichuan, China
6 AM19th Sep 2025
7 PM
5 AM20th Sep 2025
53AQI
15AQI
53AQI
36AQI
In the last 24 hours,
Bureau Of Meteorology's AQI reached its highest point of 53 at 6 AM during the Day, while the lowest point, 15, was recorded at 5 PM during the Day between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Bureau Of Meteorology, Meishan, Sichuan, China
26°C23/31°C
25°C22/28°C
25°C22/29°C
25°C22/29°C
25°C23/29°C
26°C23/30°C
26°C23/31°C
23°C21/25°C
20°C20/21°C
21°C19/23°C
22°C19/26°C
24°C19/27°C
23°C22/25°C
25°C22/29°C
26°C24/30°C
22°C19/27°C
21°C20/25°C
24°C20/28°C
24°C21/27°C
25°C21/29°C
25°C22/28°C
23°C22/23°C
24°C22/28°C
26°C22/30°C
28°C24/31°C
27°C24/31°C
25°C22/28°C
22°C19/23°C
20°C19/22°C
19°C18/22°C
--°C/°C
57AQI
45AQI
64AQI
57AQI
2025 Days Vs Air Quality
Bureau Of Meteorology, Meishan, Sichuan, China
12%
32
52%
137
29%
75
7%
18
Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)
Under WHO’s Safe Air Quality Limits: 12%
Health Risk Level:
Extreme
In 2025, 12% of 263 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Bureau Of Meteorology, Meishan, Sichuan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
165AQI
170AQI
175AQI
189AQI
169AQI
174AQI
151AQI
133AQI
136AQI
137AQI
110AQI
149AQI
143AQI
138AQI
151AQI
150AQI
164AQI
127AQI
152AQI
150AQI
176AQI
196AQI
195AQI
156AQI
124AQI
112AQI
139AQI
130AQI
190AQI
165AQI
134AQI
108AQI
111AQI
96AQI
114AQI
89AQI
91AQI
80AQI
72AQI
90AQI
105AQI
132AQI
85AQI
105AQI
105AQI
99AQI
124AQI
121AQI
140AQI
116AQI
124AQI
115AQI
77AQI
98AQI
79AQI
74AQI
89AQI
129AQI
129AQI
154AQI
144AQI
107AQI
97AQI
80AQI
66AQI
83AQI
86AQI
116AQI
125AQI
130AQI
130AQI
126AQI
124AQI
78AQI
79AQI
77AQI
86AQI
86AQI
95AQI
104AQI
137AQI
108AQI
107AQI
109AQI
130AQI
148AQI
102AQI
93AQI
78AQI
91AQI
112AQI
90AQI
106AQI
115AQI
74AQI
95AQI
94AQI
103AQI
101AQI
115AQI
105AQI
174AQI
127AQI
136AQI
136AQI
133AQI
107AQI
119AQI
93AQI
103AQI
102AQI
97AQI
105AQI
75AQI
86AQI
78AQI
82AQI
96AQI
65AQI
70AQI
75AQI
87AQI
90AQI
103AQI
66AQI
77AQI
75AQI
71AQI
125AQI
102AQI
116AQI
110AQI
96AQI
122AQI
94AQI
97AQI
127AQI
136AQI
113AQI
118AQI
108AQI
105AQI
91AQI
83AQI
82AQI
90AQI
70AQI
64AQI
71AQI
79AQI
64AQI
63AQI
49AQI
69AQI
72AQI
87AQI
95AQI
102AQI
85AQI
86AQI
84AQI
81AQI
77AQI
80AQI
85AQI
67AQI
68AQI
73AQI
53AQI
54AQI
64AQI
54AQI
39AQI
52AQI
42AQI
43AQI
48AQI
59AQI
62AQI
45AQI
46AQI
46AQI
46AQI
46AQI
55AQI
37AQI
51AQI
46AQI
55AQI
54AQI
51AQI
46AQI
54AQI
58AQI
57AQI
66AQI
72AQI
72AQI
72AQI
57AQI
56AQI
52AQI
54AQI
41AQI
38AQI
40AQI
34AQI
44AQI
51AQI
59AQI
63AQI
61AQI
61AQI
61AQI
63AQI
68AQI
71AQI
64AQI
56AQI
65AQI
46AQI
41AQI
46AQI
54AQI
57AQI
59AQI
61AQI
58AQI
57AQI
51AQI
55AQI
59AQI
56AQI
52AQI
49AQI
47AQI
49AQI
53AQI
57AQI
48AQI
42AQI
47AQI
50AQI
57AQI
64AQI
63AQI
94AQI
68AQI
64AQI
68AQI
63AQI
63AQI
68AQI
56AQI
45AQI
52AQI
57AQI
61AQI
47AQI
54AQI
39AQI
41AQI
153AQI
103AQI
106AQI
103AQI
94AQI
66AQI
53AQI
55AQI
59AQI
No. of days
202589AQI
Highest AQI recorded in
January153AQI
Lowest AQI recorded in
July53AQI
202491AQI
Highest AQI recorded in
January144AQI
Lowest AQI recorded in
July55AQI
202393AQI
Highest AQI recorded in
January154AQI
Lowest AQI recorded in
July51AQI
202297AQI
Highest AQI recorded in
January149AQI
Lowest AQI recorded in
August51AQI
202191AQI
Highest AQI recorded in
December145AQI
Lowest AQI recorded in
August54AQI
202079AQI
Highest AQI recorded in
December121AQI
Lowest AQI recorded in
July51AQI
Most & Least Polluted Years Over the Last 6 Years
Bureau Of Meteorology's annual 2025 AQI (89) shows an average percentage change of -0.7% (improved AQI) compared to previous years: 2020 (79), 2021 (91), 2022 (97), 2023 (93), 2024 (91).